public IOReadResult ReadFile(Stream stream, IMeshBuilder builder, ReadOptions options, ParsingMessagesHandler messages) { // detect binary STL //BinaryReader binReader = new BinaryReader(stream); //byte[] header = binReader.ReadBytes(80); bool bIsBinary = Util.IsBinaryStream(stream, 500); // [RMS] Thingi10k includes some files w/ unicode string in ascii header... // How can we detect this? can we check that each character is a character? //string sUTF8 = System.Text.Encoding.UTF8.GetString(header); //string sAscii = System.Text.Encoding.ASCII.GetString(header); //if (sUTF8.Contains("solid") == false && sAscii.Contains("solid") == false) // bIsBinary = true; // if first 80 bytes contain non-text chars, probably a binary file //if (Util.IsTextString(header) == false) // bIsBinary = true; //// if we don't see "solid" string in first 80 chars, probably binary //if (bIsBinary == false) { // string sText = System.Text.Encoding.ASCII.GetString(header); // if (sText.Contains("solid") == false) // bIsBinary = true; //} stream.Seek(0, SeekOrigin.Begin); // reset stream var reader = new STLReader(); reader.warningEvent += messages; IOReadResult result = (bIsBinary) ? reader.Read(new BinaryReader(stream), options, builder) : reader.Read(new StreamReader(stream), options, builder); return(result); }